Improvement in refrigerators



R. P. DEWEY.

Improvement in Refrigerators.

Patented Oct. 15,1872.

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l l I t t/ Witnesses:

UNITED STATES` IPATENT OFFICEo ROBERT P. DEWEY, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN REFRlGERA'TORS.

Specification forming part of Letters Patent No. 132,145, dated October15, 1872; antedated October 9, 1872.

GAsE B.

To all 'whom it may concern:

. Be it known that I, ROBERT P. DEWEY, of Chicago, in the county ofCook, and in the State of Illinois, have invented certain new and usefulImprovements in Refrigerators; and do hereby declare that the followingis a full, clear, and exact description thereof', reference being had tothe accompanying drawing and to the letters of reference marked thereonmaking a part of this specification.

The nature of my invention consists in the construction and arrangementof a refrigerator,77 as will be hereinafter more fully set forth.

In order to enable others skilled in vthe art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a side elevation of my refrigerator with the door open,showing the interior of the same, and Fig. 2 is a horizontal section ofthe same through line w x, Fig. 1.

My refrigerator is made in cylindrical form, the shell consisting of aninner and an outer cylinder, marked A A, and the space or chamberbetween them lled with any suitable nonconducting material B. This shellis ofcourse attached to a suitable bottom, C, resting upon or providedwith feet or legs, and is also provided with a top, in which latter isan opening with lid E, through which the ice is passed. In one side ofthe cylinder A B is formed a door, D, of any suitable dimensions, and soconstructed as to be as near air-tight as possible. Through the centerof the refrigeratorshell thus constructed passes atube, Gr, which formsthe central axis forone or more shelves, H, having vertical partitionsI, radiating from the center so as to form a series of compartments ofsuitable size to receive the articles intended to be placed therein. Thelower or 'bottom shelf may rest upon friction-rollers,

and the whole structure revolved by means of a shaft, a, passing throughthe side of the refrigerator `and having a friction-roller, b,`on itsinner end, and a crank, d, on its outer end, as shown in Fig. l. In oneof the compartments formed by the shelves H and partitions I, is placeda swinging derrick, J, to swing in and out heavy pieces of meat, 86o.per end of the central tube G passes through and ends in the center ofthe ice-pan K, upon which the ice is laid 5 said tube thus, in additionto its function as an axis for the interior structure to revolve around,also carries off the waste water. The lower end of this pipe below thebottom C has a return bend which remains full of water, so that no aircan pass up through said waste pipe.' Immediately above the interiorrevolving structure on the same side as the door D is a plate, L, whichacts as a valve to cut off the communication from the door with theice-pan K, so that the ice remains the same temperature all the time.When the compartments. revolve they pass under this plate or valve,cutting off the warm air. v

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The interior revolving structure placed within the reirigeratorfcase A,consisting of the shelves H, and partitions I, with the derrick J, allrevolved around the central waste-pipe Gr, by means ofthe roller d,shaft a, and crank b, substantially as and for the purposes herein setforth. f

In testimony that I claim the foregoing .I have hereunto set my hand andseal this 21st day of February, 1872.

R. P. DEWEY. [L. s.]

Witnesses:

H. B. STEVENS, VAN BEowNELL.

The up-

